The cutest crime fighting trio ever are welcoming one more to the team. On January 20, The Beatles legend Ringo Starr will guest star as Fibonacci Sequins in The Powerpuff Girls brand-new special, "Dance Pantsed." Starr also performs a song in honor of Blossom, Bubbles and Buttercup, "I Wish I Was a Powerpuff Girl." The series recently celebrated its 15-year anniversary and the girls are debuting a brand-new, redesigned and re-imagined look in the CG special.

Get a sneak peek of the tune below and be sure to catch the The PowerPuff Girls special Monday, January 20, at 7:30 ET.